Improvement in connecting joints and cocks of gas-brackets



Liv-ERUVSHULL. l Improvement n CennectingJoints in Cocks of Gas Braekers.`

Patented Sep. 5,1871.

Fay,

UNITED STATES PATENT OFFICE.

LIVERUS HULL, OF CHARLESTOWN, MASSACHUSETTS.

Specifica-tion forming part of Letters Patent N o. 118,722, dated September 5, 1871.

To all whom t may concern:

Be it known that I, LIVER-Us HULL, of Charlestown, of the county of Middlesex and State of Massachusetts, have invented a new and useful Iniproveni ent in the Connecting Joints and Cocks ot' Gas-Brackets; and do hereby declare the saine to be fully described in the following specification and represented in the accompanying drawing, of which Figure l is a side view, and Fig. 2 a vertical section of a gas-bracket joint and cock as heretofore constructed and in use. Fig. 3 is a side view, and Fig. 4 a vertical section of a bracket with iny improved joint and cock.

In the old gas-bracket joint, as shown in Figs. 1 and 2, a pivot, a, extends froni the rotary head b ofthe branch pipe into a socket arranged aside of and parallel with the gas-cock and its socket; but inr iny iinproved arrangement the rotary head A ofthe branch pipe B is arranged upon and so as to revolve on a tubular pivot, C, concentric with the plug or key I) of the cock E. This plug D, shown in side view in Fig. 5 and in edge view inv Fig. 6, is hollow or chainbered, closed at top, and provided with induction and eductionopenings, as shown at c d. The body Z of the cock, represented in side view in Fig. 7, has the tubular pivot C extended up from it, and to surround the upper portion of the plug, there being an educt, f, in one side of the pivot on a level with the educt (l of the plug or key. The head A is provided on its interior surface with a continuous groove, g, which extends around it and opens into the branch pipe B. The head A rests on the outer surface of the pivot, and is held in connection with such pivot by nieans of a washer, t', and a screw, 7c, arranged as shown, the screw being screwed into the upper end of the plug.

, My invention has importa-nt advantages, it rendering the joint and cock niuch silnpler, and consequently cheaper of construction relatively to the other, as shown in Figs. 1 and 2. It requires but one screw and washer to hold the parts in connection.

I claini- The branch-pipe head A, as provided with the groove g, and arranged upon a tubular pivot, C, extended up from the body of the cock and concentric with the plug thereof, all being substantially as described.

' LIVERUS HULL.

Witnesses It. H. EDDY,

J. It. SNow. 

